CCL28 and inflammatory bowel disease: Correlations of cytokine relative mRNA expression in the colonic mucosa with CCECAI, colonoscopy score and histopathologic score of dogs with IBD showed that CCL28 relative mRNA expression had a moderate, statistically significant positive correlation with crypt dilation and distortion score (subscore of the WSAVA index) (r(26) = 0.482, p = 0.013) (S1 Fig).